diff options
Diffstat (limited to 'include/linux/mhi.h')
| -rw-r--r-- | include/linux/mhi.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/mhi.h b/include/linux/mhi.h index ece53a252217..d26acc8b21cd 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -279,7 +279,7 @@ struct mhi_controller_config { u32 num_channels; const struct mhi_channel_config *ch_cfg; u32 num_events; - const struct mhi_event_config *event_cfg; + struct mhi_event_config *event_cfg; bool use_bounce_buf; bool m2_no_db; }; @@ -347,12 +347,14 @@ struct mhi_controller_config { * @unmap_single: CB function to destroy TRE buffer * @read_reg: Read a MHI register via the physical link (required) * @write_reg: Write a MHI register via the physical link (required) + * @reset: Controller specific reset function (optional) * @buffer_len: Bounce buffer length * @index: Index of the MHI controller instance * @bounce_buf: Use of bounce buffer * @fbc_download: MHI host needs to do complete image transfer (optional) * @pre_init: MHI host needs to do pre-initialization before power up * @wake_set: Device wakeup set flag + * @irq_flags: irq flags passed to request_irq (optional) * * Fields marked as (required) need to be populated by the controller driver * before calling mhi_register_controller(). For the fields marked as (optional) @@ -437,6 +439,7 @@ struct mhi_controller { u32 *out); void (*write_reg)(struct mhi_controller *mhi_cntrl, void __iomem *addr, u32 val); + void (*reset)(struct mhi_controller *mhi_cntrl); size_t buffer_len; int index; @@ -444,6 +447,7 @@ struct mhi_controller { bool fbc_download; bool pre_init; bool wake_set; + unsigned long irq_flags; }; /** @@ -682,6 +686,13 @@ enum mhi_ee_type mhi_get_exec_env(struct mhi_controller *mhi_cntrl); enum mhi_state mhi_get_mhi_state(struct mhi_controller *mhi_cntrl); /** + * mhi_soc_reset - Trigger a device reset. This can be used as a last resort + * to reset and recover a device. + * @mhi_cntrl: MHI controller + */ +void mhi_soc_reset(struct mhi_controller *mhi_cntrl); + +/** * mhi_device_get - Disable device low power mode * @mhi_dev: Device associated with the channel */ |